<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0,minimum-scale=1.0,maximum-scale=1.0" />
    <meta name="author" content="火星科技 http://mars3d.cn " />
    <meta name="apple-touch-fullscreen" content="yes" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-status-bar-style" content="black" />
    <meta name="format-detection" content="telephone=no" />
    <meta name="x5-fullscreen" content="true" />
    <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" />
    <!-- 标题及搜索关键字 -->
    <meta name="keywords" content="火星科技,cesium,3D,GIS,marsgis,三维,地球,地图,开发,框架,系统,示例,资料,模型,离线,外包,合肥,安徽,中国" />
    <meta
      name="description"
      content="火星科技 合肥火星 合肥火星科技 合肥火星科技有限公司 leaflet leaflet框架 leaflet开发 cesium cesium开发 cesium框架 三维 地球 模型  gis marsgis 地图离线 地图开发 地图框架 地图外包 框架 开发 外包  地图离线 二维地图 三维地图 全景漫游 地理信息系统 云GIS 三维GIS GIS平台 WebGIS"
    />

    <link rel="shortcut icon" type="image/x-icon" href="http://mars3d.cn/favicon.ico" />
    <title>多卫星TLE实时展示 | Mars3D | 三维地图 | 火星科技 | 合肥火星科技有限公司</title>

    <!--第三方lib-->
    <script
      type="text/javascript"
      src="../lib/include-lib.js"
      libpath="../lib/"
      include="jquery,jquery.range,font-awesome,bootstrap,bootstrap-checkbox,layer,haoutil,turf,mars3d,mars3d-space"
    ></script>

    <link href="css/style.css" rel="stylesheet" />
  </head>

  <body class="dark">
    <!--加载前进行操作提示，优化用户体验-->
    <div id="mask" class="signmask" onclick="removeMask()"></div>

    <div id="mars3dContainer" class="mars3d-container"></div>

    <script src="./js/common.js"></script>
    <script type="text/javascript">
      "use script"; //开发环境建议开启严格模式

      var map;

      function initMap(options) {
        //合并属性参数，可覆盖config.json中的对应配置
        var mapOptions = mars3d.Util.merge(options, {
          scene: {
            shadows: true,
            center: { lat: 12.845055, lng: 112.931363, alt: 24286797, heading: 3, pitch: -90 },
            cameraController: {
              zoomFactor: 3.0,
              minimumZoomDistance: 1000,
              maximumZoomDistance: 300000000,
              constrainedAxis: false, //解除在南北极区域鼠标操作限制
            },
            globe: { enableLighting: true },
            clock: {
              multiplier: 1, //速度
            },
          },
          control: {
            animation: true, //是否创建动画小器件，左下角仪表
            timeline: true, //是否显示时间线控件
          },
        });

        //创建三维地球场景
        map = new mars3d.Map("mars3dContainer", mapOptions);

        let dmzList = [
          { name: "西安", radius: 1500000, point: [108.938314, 34.345614, 342.9] },
          { name: "喀什", radius: 1800000, point: [75.990372, 39.463507, 1249.5] },
          { name: "文昌", radius: 1200000, point: [110.755151, 19.606573, 21.1] },
        ];
        creatreDmzList(dmzList);

        queryTleChinaApiData()
          .then(function (data) {
            createSatelliteList(data.data);
          })
          .catch(function () {
            haoutil.msg("获取卫星信息异常！");
          });
      }

      //地面站图层
      var dmzLayer;

      //创建地面站
      function creatreDmzList(arr) {
        //创建矢量数据图层
        dmzLayer = new mars3d.layer.GraphicLayer();
        map.addLayer(dmzLayer);

        for (var i = 0; i < arr.length; i++) {
          var item = arr[i];

          //地面站gltf模型
          var graphic = new mars3d.graphic.ModelEntity({
            name: "地面站模型",
            position: item.point,
            style: {
              url: "//data.mars3d.cn/gltf/mars/leida.glb",
              heading: 270,
              scale: 30,
              minimumPixelSize: 40,
            },
            popup: item.name,
          });
          dmzLayer.addGraphic(graphic);

          let dmfwGraphic = new mars3d.graphic.CircleEntity({
            name: item.name,
            position: item.point,
            style: {
              radius: item.radius,
              color: "#ff0000",
              opacity: 0.3,
            },
            popup: item.name,
          });
          dmzLayer.addGraphic(dmfwGraphic);

          //判断时会用到的变量
          dmfwGraphic._isFW = true;
          dmfwGraphic._lastInPoly = {};
        }
      }

      //创建卫星列表
      function createSatelliteList(arr) {
        //创建矢量数据图层
        var graphicLayer = new mars3d.layer.GraphicLayer();
        map.addLayer(graphicLayer);

        //单击地图空白处
        map.on(mars3d.EventType.clickMap, function (event) {
          highlightSatellite();
        });

        graphicLayer.on(mars3d.EventType.click, function (event) {
          console.log("单击了卫星", event);
          //单击事件
          highlightSatellite(event.graphic);
        });
        graphicLayer.on(mars3d.EventType.change, function (event) {
          //位置变化事件
          processInArea(event.graphic);
        });

        for (var i = 0; i < arr.length; i++) {
          var item = arr[i];

          //属性处理
          item.model = {
            url: "//data.mars3d.cn/gltf/mars/weixin.gltf",
            ...(item.model || {}),
            distanceDisplayCondition: true,
            distanceDisplayCondition_near: 0,
            distanceDisplayCondition_far: 20000000,
            show: true,
          };
          //当视角距离超过20000000米(distanceDisplayCondition_far定义的) 后显示为点对象的样式
          item.point = {
            show: true,
            color: "#ffff00",
            pixelSize: 5,
            distanceDisplayCondition: true,
            distanceDisplayCondition_near: 20000000,
            distanceDisplayCondition_far: Number.MAX_VALUE,
          };

          item.label = item.label || {};
          item.label.show = true;

          //path显示后FPS下降的厉害
          item.path = item.path || {};
          item.path.color = Cesium.defaultValue(item.path.color, "#e2e2e2");
          item.path.closure = Cesium.defaultValue(item.path.closure, true);

          item.cone = {
            sensorType: i % 2 === 1 ? mars3d.graphic.SatelliteSensor.Type.Rect : mars3d.graphic.SatelliteSensor.Type.Conic,
            angle1: haoutil.math.random(20, 40),
            angle2: haoutil.math.random(10, 20),
            show: false,
          };
          item.popup = `名称：${item.name}<br/>英文名：${item.name_en || ""}<br/>类型：${item.type}`;
          //属性处理  END

          var satelliteObj = new mars3d.graphic.Satellite(item);
          graphicLayer.addGraphic(satelliteObj);
        }
        console.log("当前卫星数量: " + arr.length);
      }

      var lastSelectWX;

      function highlightSatellite(satelliteObj) {
        if (lastSelectWX) {
          //重置上次选中的轨道样式
          lastSelectWX.setOptions({
            path: {
              color: "#e2e2e2",
              opacity: 0.5,
              width: 1,
            },
          });
          lastSelectWX.coneShow = false; //关闭视锥体
          lastSelectWX = null;
        }

        if (satelliteObj) {
          //高亮选中的轨道样式
          satelliteObj.setOptions({
            path: {
              color: "#ffff00",
              opacity: 1,
              width: 2,
            },
          });
          satelliteObj.coneShow = true; //打开视锥体
          lastSelectWX = satelliteObj;
        }
      }

      //判断卫星是否在面内
      function processInArea(weixin) {
        var position = weixin?.position;
        if (!position) {
          return;
        }

        dmzLayer.eachGraphic(function (dmzGraphic) {
          if (!dmzGraphic._isFW) {
            return;
          }

          dmzGraphic._lastInPoly[weixin.uuid] = dmzGraphic._lastInPoly[weixin.uuid] || {};

          let lastState = dmzGraphic._lastInPoly[weixin.uuid];

          var thisIsInPoly = dmzGraphic.isInPoly(position);
          if (thisIsInPoly !== lastState.state) {
            if (thisIsInPoly) {
              //开始进入区域内
              console.log(`${weixin.name} 卫星开始进入 ${dmzGraphic.name} 地面站区域内`);

              let line = new mars3d.graphic.PolylineEntity({
                positions: new Cesium.CallbackProperty(function (time) {
                  var pots = weixin.position;
                  if (!pots) {
                    return [];
                  }
                  return [pots, dmzGraphic.positionShow];
                }, false),
                style: {
                  width: 7,
                  //动画线材质
                  material: mars3d.MaterialUtil.createMaterialProperty(mars3d.MaterialType.LineFlow, {
                    url: "./img/textures/arrow2.png",
                    color: Cesium.Color.AQUA,
                    repeat: new Cesium.Cartesian2(15, 1),
                    speed: 60, //时长，控制速度
                  }),
                  arcType: Cesium.ArcType.NONE,
                },
              });
              map.graphicLayer.addGraphic(line);
              lastState.line = line;

              weixin.coneShow = true; //打开视锥体
            } else {
              //离开区域
              console.log(`${weixin.name} 卫星离开 ${dmzGraphic.name} 地面站区域内`);

              if (lastState.line) {
                map.graphicLayer.removeGraphic(lastState.line);
                delete lastState.line;
              }
              weixin.coneShow = false; //关闭视锥体
            }

            dmzGraphic._lastInPoly[weixin.uuid].state = thisIsInPoly;
          }
        });
      }

      // 访问后端接口，取数据
      function queryTleChinaApiData() {
        return new Promise(function (resolve, reject) {
          $.ajax({
            url: "//data.mars3d.cn/file/apidemo/tle-china.json",
            type: "get",
            dataType: "json",
            success: function (result) {
              resolve(result);
            },
            error: function (data) {
              reject(data);
            },
          });
        });
      }
    </script>
  </body>
</html>
